Process of drying gas.



PATENTED FEB. 19, 1907.

G.- G. SMITH.

PROCESS OF DRYING GAS.

APPLICATION FILED DEO.12, 1901.

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UNITED STATES PATENT OFFICE.

GEORGE GREGORY SMITH, OF FLORENCE, ITALY.

PROCESS OF DRYING GAS- Specification of Letters Patent.

Application filed December 12. 1901. Serial No. 85,547-

To all whom it may concern:

Be it known that I, GEORGE GREGORY SMITH, a citizen of the United States, residing in Florence, Italy, have invented certain new and useful Improvements in Processes of Drying Gas, of which the following is a specification.

' This invention relates to the art of drying gas, and as for its object to provide an eliicient met iod of removing moisture from the g Another object of the invention consists in the process of removing moisture from gas within a closed chamber and automatically purging the chamber of the matter dried out of the gas.

In carrying out my invention I pass the gas through a suitable drying liquid of greater specific gravity than the gas and of less specific gravity than the moisture carried by the gas and cause the moisture in the gas to con dense in the drier and throw down such condensation and remove the water of condensation from'below the drier without permitting the escape of the gas.

The pressure of the gas, if desired, may be balanced by a column of liquid, and upon the overbalancing of the column by the pressure of liquid thrown down by the drier it may be expelled automatically and as often as suflicient collects to overbalance the column of liquid.

I have discovered that liquid Vaseline has apparently no ailini ty for certain gases, among them acetylene, and, further, there appears to be no chemical aiiinity or reaction either upon the gas or the Vaseline. The as, upon passage through the Vaseline, will e dried, having all moisture carried thereby condensed, and the Vaseline will keepitself in its normal condition by precipitating the water of condensation.

Apparatus which is capable of use in the carrying out of my improved method of dry ing gas is made the su ject of application for United States Letters Patent, Serial No. 26,215, filed August 8, 1900, for a combined drier and back-pressure valve.

For the purpose of facilitating the describing of my improved method of drying gas removal of the precipitate.

reference is made to the drawings accompanying and forming a part of this specification, wherein avertical section of a form of apparatus is shown which is ca able of utili- 5 zation in carrying out my met rod.

The chamber (designated in a general way Patented Feb. 19, 1907.

by A) comprises a top late 1, end plates 2 2, one of which is provi ed with a window 3, and a bottom plate 4, having a well 5 at one end, at the bottom of which well is showna petcock 6. Within the chamber arc'shown projecting two pipes 7 7, supposed to come from generators or other supply of gas, which pipes are shown as projecting for a consid erable distance into the chamber. A gasmain 8 is shown as communicating with the upper part of the chamber and as being curved downward. A pipe 9 is shown as entering the top of the chamber and projecting down into the well, the upper end 10 of the pipe being shown as bent over and as being normally open. The chamber is also shown as containin liquidsa heavierliquidaand a lighter liqui b-superimposed thereon.

In carrying out my method a body of some suitable liquid, which may be an oil havin no aflinityfor the gas, and maybe li uid Vaseline, if desired, will be put in a suita le gas-tight chamber, and gas from a generator or other source of sup lywillbe passed into the liquid, whereupon t e moisture carried by the gas will be condensed and recipitated and the gas in a dry state and i' reed from any liquid or moisture carried from the point of supply or otherwise will ass on into the main.

After having etermined the maximum amount of pressure which will be maintained in the main the length of the pipe 9 will be adjusted so that such maximum pressure will not displace the desired amount or charge of drier employed, and upon the accumulation of water or other liquid in the chamber, which will raise the surfacclevel of the drier, and consequently shorten the column of liquid within the discharge-pipes, the liquid at the lowest part of the chamber will be forced out through the pipe, and upon the reduction of the liquid within the chamber below a certain predetermined height the column of liquid Within the tube will again overbalance the pressure of gas and no further liquid will be discharged. Instead of this auto matic removal of the liquid dried out from .the gas the same may be removed by some other suitable means. A petcock or other convenient device may be employed for the Impurities of the gas are divided out in the,

mixture and upon separation ofthe gas and drier remain in the drier and are. precipitated with the condensed moisture.

Having described my invention, I claim 1. The process. of drying acetylene gas which consists, in passing the gas .through vaseline.

2. The process of/drying gas which consists in bringing the gas in contact with Vaseline.

3. The process'of drying acetylene. gas which consists in bringing the gas in contact with liquid Vaseline.

4. The process of drying acetylene gas which consists in passing-the same through liquid vaseline.

5. The process of drying acetylene. gas

which consists in passing the same. rapidly.

through liquid vaseline.

6. The process which consists inpassing acetylene gas from agenerator through li uid vaseline contained in a closed vesse; thereby condensing the. moisture carried by the. gas, throwing down the water of condensation and collecting the water below the. Vaseline and automatically removing the Wa-. ter from the vessel.

The gas.

with Vaseline, and then 7'1 The process of removing water from acetylene gaswhichcon ists ,in mixing the gas and water with liquid Vaseline, then precipitating the water, and liberating the gas,

8. The process of removing water from acetylene gas which consists in mixing the gas and water with liquid vaseline, and liberatingthe gas...

9. The process of drying gas which consists in mixing the. moisture carriedby the-gas precipitating the mo1sture.,

10. The process which consists in passing acetylene gas from agenerator through liq--- uid vaseline, thereby throwing down water carried by the gas and collecting the water below such vaseline, and automatically ej ecting the water therefrom. i

'. v 11. The process whichconsists ifi' permit ting the gas from a generator to bubble.

through liquid Vaseline, andthereby throw down the water carried thereby, and then: collecting the water below such .vaseline and ejecting the ,waterby means ofthe gas-pres:

sure, and regulating the amount of pressure.

necessaryto. so ejectthe water by means of a column of water.

12. The. process which consistsin passing acetylene gas. from a generator through liq:

uid Vaseline, thereby removing and throwing down the water carried bythe gas and collecting th water below such Vaseline and all-- tomaticall removing the watertherefrom...

GEORGE GREGORY"SM;ITH,

Witnesses:

PIERSON L. WELLS, CHAS. LYON Russ an... 

